Mail-bag delivery.



A. DUNLOP.

MAIL BAG DELIVERY.

I APPLICATION FILED NOV-17,1917.

1,233,,1 1., Patented. 001;. 29, 1918.

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A. DUNLOP.

MAIL BAG DELIVERY.

APPLICATION FILED NOV. 17, 1917.

1,283, 1 1 o Patented Oct. 29, 1918'.

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ARCHIIBALD DUNLQP, OF NORTH BILLERICA, MASSACHUSETTS.

MAIL-BAG DELIVERY.

Specification of Letters Patent.

Patented Oct. as, 1918.

Application filed November 17, 1917. Serial No. 202,591.

To all whom it may concern Be it known that I, ARCHIBALD DUNLOP, citizen of the Dominion of Canada, residing at North Billerica, in the county of Middlesex and State of Massachusetts, have invent ed new and useful Improvements in Mail- Bag Deliveries, of which the following is a specification.

This invention relates to devices for delivering mail to cars while in motion and aims to provide means whereby sacks of mail will be automatically projected through the door of a passing mail car.

An object of the invention is to provide a device positioned near the track and upon which the sacks of mail may be placed, the sack supporting means being placed under tension and so held by the use of a trigger, the car being provided with means for contact with such trigger to release the sack holding means and project the sack through the door of the car.

For the accomplishment of the above purpose the invention includes a post or support having one end of a resilient stripsecured thereto, the opposite end of this strip extending at an angle from the post and having means for supporting the mail bags. This strip also carries a pin engageable with the trigger, which, when the said trigger is engaged by a trip rod'carried by the passing car, releases the strip and causes the mail to be shot through the door of the car..

In the drawings:

Figure 1 is a side elevation of the device in position for operation.

Fig. 2 is a similar view showing the parts in position after the delivery of the mail.

Fig. 3 is a top plan view and Fig. 4 is a front elevation of the device.

Referring to the drawings in detail, wherein like characters of reference denote corresponding parts, there is shown a mail car designated by the reference character 10.

Positioned opposite the track is a post or support 11 of suitable height, to the lower end of which is secured by means of metallic straps 12, one end of a resilient metal strip 13. Secured to the support 11 immediately above the uppermost strap 12 is a block 14, the purpose of which is to normally force the free end of the strip 13 at an angle from the support.

Also secured to the support 11 and extending at an angle therefrom upon the side opposite the strip 13, is a beam 15, one end of this beam being secured to the support, while its opposite end is spaced therefrom and held in such spaced position by means of a brace 16 interposedbetween the beam and the support 11. Secured to the upper free end of the beam 15 is a trigger 17, the sald trigger being horizontally disposed and having its free end resting and working withinthe upper end of the support 11. For this purpose the upper end of the said support is formed with a seat 18, at each end of which is provided stops 19 and 20, the purpose being to limit the movement of the trigger 17, which is mounted for horizontal swinging movement upon the pivot 21, by means of which it is connected with the beam 15. Located near the support or post 11 within the trigger 17 is an opening 22, which is adapted to receive a pin 23 projecting laterally through the free end of the resilient strip 13, so that the said strip may be forced inward toward the support 11 and the pin inserted in the opening 22 and hold the strip 13 under tension, as shown in Fig. 1.

Located near the free end of the strip 13 is a shelf or support 24, which is adapted to receive the sacks of mail, the said sacks being merely laid upon this shelf.

In order to release the strip 13 from its engagement with the trigger 17, the mail car 10 carries an operating rod 25, which projects forwardly at an angle from the car and is formed upon its outer end with a beveled portion 26, for engagement with the beveled end 27, of the trigger 17.

By reference to Fig. 3 it will be seen that the engagement of the rod 25 with the end of the trigger 17 will swing the said trigger upon its pivot 21 to disengage the pin 23 from the opening 22 permitting the strip 13 to fly in the direction of the car and forcing the mail sacks to be projected through the door of said car, the angle of the rod 25 being such as to cause the releasing of the strip 13 at the proper moment.

If desired strip 30 may be secured to the post 11 and project forward in a manner to prevent the accidental displacement of the mail sack from the shelf 24, by the sudden rush of air from a passing train.

Various changes may be made in the form, preparation and minor details of construction Without departing from the spirit or sacrificing any of the advantages of the invention.

Having described the invention What is claimed is:

In a device of the class described, a support, an outwardly and upwardly inclined resilient strip having one end connected to said support and its opposite free end normally spaced from the latter, a trigger having one end pivoted upon said support for horizontal and lateral movement, a laterally extending arin carried by the support for supporting the free end of the trigger, a stop located upon the outer end of said arm in the path of said trigger, a pin extending laterally from one edge of the resilient strip for engagement Within an opening in said trigger to hold the strip under tension, means carried by the resilient strip for supporting a mail bag and a car device adapted to contact'witli the free end of the trigger to swing it laterally from engagement With the resilient strip.

In testimony whereof I a'flix my signature.

AROHIBALD DUNLOP.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

